docs: def docker_client():
      """
      Returns a docker-py client configured using environment variables
      according to the same logic as the official Docker client.
      """
      cert_path = os.environ.get('DOCKER_CERT_PATH', '')
      if cert_path == '':
          cert_path = os.path.join(os.environ.get('HOME', ''), '.docker')
  
      base_url = os.environ.get('DOCKER_HOST')
      tls_config = None
  
      if os.environ.get('DOCKER_TLS_VERIFY', '') != '':
          parts = base_url.split('://', 1)
          base_url = '%s://%s' % ('https', parts[1])
  
          client_cert = (os.path.join(cert_path, 'cert.pem'),
                         os.path.join(cert_path, 'key.pem'))
          ca_cert = os.path.join(cert_path, 'ca.pem')
  
          tls_config = tls.TLSConfig(
              ssl_version=ssl.PROTOCOL_TLSv1,
              verify=True,
              assert_hostname=False,
              client_cert=client_cert,
              ca_cert=ca_cert,
          )
  
      timeout = int(os.environ.get('DOCKER_CLIENT_TIMEOUT', 60))
      return Client(
          base_url=base_url, tls=tls_config, version='1.15', timeout=timeout
      )